Using a Calculator

Moderators: Chem_Mod, Chem_Admin

Matlynn Giles 2E
Posts: 88
Joined: Wed Sep 30, 2020 10:10 pm
Been upvoted: 1 time

Using a Calculator

Postby Matlynn Giles 2E » Mon Nov 02, 2020 2:27 pm

Not sure if anyone's run into this problem but I'd thought I would share because it continuely happens to me. By using parantheses on everything you insert into your calculator, it really prevents errors. Especially in terms of determining if an exponenet should be negative or positive

Megan Sparrow 1A
Posts: 105
Joined: Wed Sep 30, 2020 9:49 pm
Been upvoted: 4 times

Re: Using a Calculator

Postby Megan Sparrow 1A » Mon Nov 02, 2020 2:43 pm

Another good tip for scientific calculators is to set it SCI mode. Usually, the default is on FLO, but SCI shows results in scientific notation which saves time from homework and test questions. I believe our week 0 sapling optional homework noted this.

Joseph Hsing 2C
Posts: 85
Joined: Wed Sep 30, 2020 9:42 pm

Re: Using a Calculator

Postby Joseph Hsing 2C » Mon Nov 02, 2020 3:21 pm

Pressing 2nd then comma is also a shortcut for *10^ this helps save a lot of time for me.

Q Scarborough 1b
Posts: 111
Joined: Wed Sep 30, 2020 9:59 pm
Been upvoted: 2 times

Re: Using a Calculator

Postby Q Scarborough 1b » Mon Nov 02, 2020 3:51 pm

You can also store constants in your calculator which I find very helpful. That way you do not have to type out long numbers like planks constant or avogadro's number. Just type the number, push sto-> and any letter. Then use that letter the same way you would the number going forward.

Sana Nagori 2H
Posts: 130
Joined: Wed Sep 30, 2020 9:43 pm
Been upvoted: 1 time

Re: Using a Calculator

Postby Sana Nagori 2H » Mon Nov 02, 2020 5:16 pm

so true. I kept getting a question wrong on Sapling for the longest time before realizing my numbers were not in parentheses.

Hannah Chang 3K
Posts: 91
Joined: Sat Oct 17, 2020 12:15 am

Re: Using a Calculator

Postby Hannah Chang 3K » Mon Nov 02, 2020 6:05 pm

Upon reading the comments, I took out the instruction manual of my scientific calculator and realized it has forty built-in scientific constants and does SI conversion.....and there I was, typing stuffs wrong.

Faith Lee 2L
Posts: 91
Joined: Wed Sep 30, 2020 9:39 pm
Been upvoted: 1 time

Re: Using a Calculator

Postby Faith Lee 2L » Mon Nov 02, 2020 6:41 pm

I want to add that for most calculators, you can scroll up to previous calculations and click "enter" for your calculator to bring up a certain value. It's really helpful for empirical formula problems where you calculate the mole value for multiple elements and then have to go back and divide each value by the lowest value. This way, you don't have to type out every value all over again :)

ShinwooKim_3E
Posts: 85
Joined: Wed Sep 30, 2020 10:00 pm

Re: Using a Calculator

Postby ShinwooKim_3E » Wed Nov 04, 2020 12:42 am

Matlynn Giles 1A wrote:Not sure if anyone's run into this problem but I'd thought I would share because it continuely happens to me. By using parantheses on everything you insert into your calculator, it really prevents errors. Especially in terms of determining if an exponenet should be negative or positive

I remember getting 10 points docked off for my chemistry final in high school because I forgot to use parentheses when using the calculator :')

Kathy_Li_1H
Posts: 85
Joined: Wed Sep 30, 2020 9:31 pm

Re: Using a Calculator

Postby Kathy_Li_1H » Sat Nov 07, 2020 6:04 pm

I also want to mention that it's important to pay attention to the number of paratheses you have because sometimes it can result in syntax errors.

Gicelle Rubin 1E
Posts: 81
Joined: Fri Oct 02, 2020 12:16 am

Re: Using a Calculator

Postby Gicelle Rubin 1E » Sat Nov 07, 2020 6:10 pm

Yes!! If I don't add parenthesis in some occasions, it gives me a totally wrong exponent and it messes everything up!

Gicelle Rubin 1E
Posts: 81
Joined: Fri Oct 02, 2020 12:16 am

Re: Using a Calculator

Postby Gicelle Rubin 1E » Sat Nov 07, 2020 6:11 pm

Megan Sparrow 1G wrote:Another good tip for scientific calculators is to set it SCI mode. Usually, the default is on FLO, but SCI shows results in scientific notation which saves time from homework and test questions. I believe our week 0 sapling optional homework noted this.


I didn't know this was a feature! Thank you for this information!!


Return to “SI Units, Unit Conversions”

Who is online

Users browsing this forum: No registered users and 1 guest